2018298261 has 8 divisors (see below), whose sum is σ = 3075502144. Its totient is φ = 1153313280.

The previous prime is 2018298229. The next prime is 2018298263. The reversal of 2018298261 is 1628928102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2018298261 - 2⁵ = 2018298229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018298263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48054700 + ... + 48054741.

It is an arithmetic number, because the mean of its divisors is an integer number (384437768).

Almost surely, 2^2018298261 is an apocalyptic number.

2018298261 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2018298261 is a deficient number, since it is larger than the sum of its proper divisors (1057203883).

2018298261 is an equidigital number, since it uses as much as digits as its factorization.

2018298261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96109451.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 2018298261 is about 44925.4745217009. The cubic root of 2018298261 is about 1263.7517849427.

The spelling of 2018298261 in words is "two billion, eighteen million, two hundred ninety-eight thousand, two hundred sixty-one".